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Call Our Sauna Experts 725-777-5484
Call Our Sauna Experts 725-777-5484

ProSaunas Aspen Midnight Black 1x4 T&G STS4

Original price $6.44 - Original price $32.20
Original price
$6.44 - $32.20
Current price $6.44
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How To Order Sauna Wood


Sauna Wood, Black-Wax Finished, Tongue & Groove, Nickel-Gap, Wall Material

Prosaunas Aspen Midnight Black tongue and groove 1x4 STS4 profile creates a striking contrast, and is recommended for sauna walls and ceilings. This black-wax finished cladding is perfect for creating a dynamic, contemporary look. When paired as an accent wall with different bench and surface woods, its smooth black appearance will complement the lighter materials.

Aspen is a perfect sauna material for many reasons. It has very good dimensional stability, does not split when nailed, and its thermal properties are ideal in a sauna. Because of Aspen’s low heat conductivity, it will remain comfortable to the touch even in the extreme heat of a sauna.

The narrow, angular grooves of STS4 wall panels produce the modern nickel-gap look. STS4 can create a sophisticated contrast effect when combined with other wood profiles. Prosaunas distinctive nickel-gap panels are precision-milled to our precise specifications, creating a contemporary Scandinavian aesthetic.

Prosaunas carefully selects only the finest wood from Northern Europe and Canada, assuring that the quality and consistency of our wood selection is the best available. Our team has more than 55 years of experience crafting premium sauna rooms across North America, and we only offer wood that meets our stringent standards. Because of our total commitment to quality, we can ensure your wood order will arrive to your satisfaction.

Nominal VS Actual
Nominal: wood boards are given in "nominal" measurements, which is the lumber’s size when it is cut from moist logs (usually 8’ / 9’ / 10’)
Actual: size after shrinkage from drying and surfacing, the actual size of lumber will be less than its nominal size. (usually 94-3/4" / 106-1/2" / 118-1/4")


  • Perfect for colored accent walls
  • Ideal sauna material
  • Doesn't get too hot
  • Doesn't secrete resin
  • Doesn't splinter
  • Narrow and angular grooves
  • Natural wood
  • Can be combined with other profiles


Species Aspen
Finish Black
Wall Coverage 3.1" (80mm)
Product Width 3.54" (90mm)
Product Thickness .59" (15mm)
Shipping Length Up to 10'

How To Order Sauna Wood

In case you're interested in our sauna wood, build your wood kit and request a quote from us! This allows us to verify the shipping timeline, and shipping costs, among other things.

Step by step instructions on ordering sauna wood:

Build your quote request with the desired amounts of different woods using our quote calculator found on each product page, directly after the description.

Remember to add your State and Zip code to the quote request.

Submit your request. We will send you a quote on the package, with expected delivery date.

Build Your Sauna Wood Quote Request

  1. Locate this Form: You'll find it on every product page by scrolling down.
  2. Add Products as You Browse: It functions similarly to a shopping cart. Simply add items to your quote as you expolore our products.
  3. Finalize Your Quote: Once you're finished, click 'Send' to submit your request.
  4. We will get in touch with you as soon as we have the shipping costs and timeline for your requested products. This will take us 1-2 business days to complete.

Need more help? Read our Quote Form Tutorial or click the chat icon in the bottom right corner for live assistance.

Title Quantity

Thank you. We have received your quote request and will be in touch soon.

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Customer Highlights

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